无法访问 docker 容器中的 mysql 数据库
[英]Can not access mysql database in docker container
问题描述
I created docker-compose file with such configuration for db:
我为db创建了具有以下配置的docker-compose文件：
version: "3.8"版本：“3.8”
services:
mysql:
image: mysql:latest
restart: always
hostname: 'mysqlserver'
ports:
# <Port exposed> : < MySQL Port running inside container>
- '3333:3306'
environment:
- MYSQL_USER=admin
- MYSQL_PASSWORD=admin
- MYSQL_DATABASE=appointments
- MYSQL_ROOT_PASSWORD=admin
volumes:
- db-data:/var/lib/mysql
volumes:
db-data:
after executing docker-compose up command, docker downloads image, creates container.执行 docker-compose up 命令后，docker 下载镜像，创建容器。 After that I connect to it via bash and try to connect to mysql via params described in environment section, but I get error:之后，我通过 bash 连接到它，并尝试通过环境部分中描述的参数连接到 mysql，但出现错误：
ERROR 1045 (28000): Access denied for user 'root'@'localhost'
I tried such commands as:我试过这样的命令：
mysql -U admin
mysql -U root -padmin
mysql -u root
Docker container shows these logs: Docker 容器显示以下日志：
docker logs 21d296993c97
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.25-1debian10 started.
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.25-1debian10 started.
2021-06-14T06:20:22.743829Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.25) starting as process 1
2021-06-14T06:20:22.751496Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2021-06-14T06:20:22.896967Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
2021-06-14T06:20:23.007766Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock
2021-06-14T06:20:23.102185Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2021-06-14T06:20:23.102321Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel.
2021-06-14T06:20:23.105564Z 0 [Warning] [MY-011810] [Server] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
2021-06-14T06:20:23.131072Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.25' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server - GPL.
So I specified necessary variables in environment< docker does not show any error, but I can not connect to mysql.所以我在环境中指定了必要的变量< docker 没有显示任何错误，但我无法连接到 mysql。 What I'm doing wrong?我做错了什么？
1 个解决方案
解决方案1
0 2021-06-14 06:52:58
I created docker-compose file with such configuration for db:我为db创建了具有以下配置的docker-compose文件：
version: "3.8"版本：“3.8”
services:
mysql:
image: mysql:latest
restart: always
hostname: 'mysqlserver'
ports:
# <Port exposed> : < MySQL Port running inside container>
- '3333:3306'
environment:
- MYSQL_USER=admin
- MYSQL_PASSWORD=admin
- MYSQL_DATABASE=appointments
- MYSQL_ROOT_PASSWORD=admin
volumes:
- db-data:/var/lib/mysql
volumes:
db-data:
after executing docker-compose up command, docker downloads image, creates container.执行 docker-compose up 命令后，docker 下载镜像，创建容器。 After that I connect to it via bash and try to connect to mysql via params described in environment section, but I get error:之后，我通过 bash 连接到它，并尝试通过环境部分中描述的参数连接到 mysql，但出现错误：
ERROR 1045 (28000): Access denied for user 'root'@'localhost'
I tried such commands as:我试过这样的命令：
mysql -U admin
mysql -U root -padmin
mysql -u root
Docker container shows these logs: Docker 容器显示以下日志：
docker logs 21d296993c97
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.25-1debian10 started.
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
2021-06-14 06:20:22+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.25-1debian10 started.
2021-06-14T06:20:22.743829Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.25) starting as process 1
2021-06-14T06:20:22.751496Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2021-06-14T06:20:22.896967Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
2021-06-14T06:20:23.007766Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock
2021-06-14T06:20:23.102185Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2021-06-14T06:20:23.102321Z 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel.
2021-06-14T06:20:23.105564Z 0 [Warning] [MY-011810] [Server] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
2021-06-14T06:20:23.131072Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.25' socket: '/var/run/mysqld/mysqld.sock' port: 3306 MySQL Community Server - GPL.
So I specified necessary variables in environment< docker does not show any error, but I can not connect to mysql.所以我在环境中指定了必要的变量< docker 没有显示任何错误，但我无法连接到 mysql。 What I'm doing wrong?我做错了什么？
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